VPV Converter
P/N 236-803

Principally used for variable speed fan interfacing, VPV Converter TM is a microprocessor controlled signal converter for residential and commercial HVAC systems. There are two ways VPV Converter can be connected. The first way, "VP", allows a controller producing VPV Convertera variable voltage output to drive an ECM type fan motor requiring a PWM drive signal. The second way, "PV" allows a controller producing a PWM ECM output to control a variable voltage drive fan. Only one device needs to be stocked to do both jobs because VPV Converter detects the type of signal from the controller, and creates the appropriate output to drive the fan automatically.

Inputs Outputs
0 - 10 VDC 12 VDC PWM
12 VDC PWM 0 - 10 VDC
  "G" Fan Drive
  Relay Closure

VPV Converter uses analog and digital filters to reject electrical line and system noise. This allows VPV Converter to respond only to the actual input signal and ignore electrical transients caused by motor brushes, contactor arcing, and other noise sources commonly found in HVAC systems.

VPV Converter is compatible with Georgia Controls Atlanta Series controllers, allowing them to drive 0-10VDC variable speed blowers. VPV Converter can also connect to controllers with 0-10V outputs to drive ECM type blower which use 12VDC PWM to control their fan speed.

VPV Converter is housed in a 3 x 3 x 1.5" (7.6 x 7.6 x 3.8cm) ABS box with two mounting tabs. Status LEDs are visible through the graphic overlay on the front, just above the device connector. All input, output, and power wires are installed in a single, locking connector, making mounting and harness connection a snap.

Sold in OEM quantities only. E-mail or call for OEM pricing.

Operating Specifications (Ta=25C)
Power Requirement
Voltage 24VAC
Current 55mA Typ
DC Input
Step Response 10s Max
Turn-on Threshold 0.5V +/-0.1V
Tolerance +/-1.5% Typ +/-2.5% Max
PWM Input
Frequency Response 20 - 20,000Hz
Voltage Output
Tolerance +/-1% Typ +/-2% Max
PWM Output
Frequency 125Hz Typ
Duty Cycle 5 - 100%
Amplitude 0 - 12V DC
"G" Output
Voff 0V DC
Von 12V DC
Relay Closure
Vmax 40V DC 28V AC
Imax 250mA
Operating Temperature 10 - 50C
Humidity 5 - 95%, non-condensing